Finite element analysis of temperature and residual stress profiles of porous cubic Ti-6Al-4V titanium alloy by electron beam melting

doi:10.1016/j.jmst.2020.01.033

IMR OpenIR

	Finite element analysis of temperature and residual stress profiles of porous cubic Ti-6Al-4V titanium alloy by electron beam melting
	He, Xiaochun 1; Li, Yang 1; Bi, Yongjie 1; Liu, Xiaomei 1; Zhou, Bing 1; Zhang, Shangzhou 1; Li, Shujun 2
通讯作者	Zhang, Shangzhou(szzhangyt@163.com)
	2020-05-01
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	44 页码:191-200
摘要	The temperature and stress profiles of porous cubic Ti-6Al-4V titanium alloy grids by additive manufacturing via electron beam melting (EBM) based on finite element (FE) method were investigated. Three-dimensional FE models were developed to simulate the single-layer and five-layer girds under annular and lateral scanning. The results showed that the molten pool temperature in five-layer girds was higher than that in single-layer grids owing to the larger mass and higher heat capacity. More energies accumulated by the longer scanning time for annular path than lateral path led to the higher temperature and steeper temperature gradient. The thermal stress drastically fluctuated during EBM process and the residual stress decreased with the increase of powder layer where the largest stress appeared at the first layer along the build direction. The stress under lateral scanning was slightly larger but relatively more homogeneous distribution than those under annular scanning. The stress distribution showed anisotropy and the maximum Von Mises stress occurred around the central node. The stress profiles were explained by the temperature fields and grids structure. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Electron beam melting Ti-6Al-4V titanium alloy Porous cubic grids Finite element analysis Temperature field Stress field
资助者	Natural Science Foundation of Shandong Province, China ; Major Major Scientific and Technological Innovation Program of Shandong Province, China ; Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of China
DOI	10.1016/j.jmst.2020.01.033
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of Shandong Province, China[ZR2019MEM012] ; Major Major Scientific and Technological Innovation Program of Shandong Province, China[2019JZZY010325] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-JSC031-02] ; National Natural Science Foundation of China[51871220]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000522863000020
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/138083
专题	中国科学院金属研究所
通讯作者	Zhang, Shangzhou
作者单位	1.Yantai Univ, Sch Nucl Equipment & Nucl Engn, Yantai 264005, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	He, Xiaochun,Li, Yang,Bi, Yongjie,et al. Finite element analysis of temperature and residual stress profiles of porous cubic Ti-6Al-4V titanium alloy by electron beam melting[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,44:191-200.
APA	He, Xiaochun.,Li, Yang.,Bi, Yongjie.,Liu, Xiaomei.,Zhou, Bing.,...&Li, Shujun.(2020).Finite element analysis of temperature and residual stress profiles of porous cubic Ti-6Al-4V titanium alloy by electron beam melting.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,44,191-200.
MLA	He, Xiaochun,et al."Finite element analysis of temperature and residual stress profiles of porous cubic Ti-6Al-4V titanium alloy by electron beam melting".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 44(2020):191-200.